<template>
	<view class="search">
		<Lines />
		
		<view class="search-item">
			<view class="search-title">
				<view class="f-color">最近搜索</view>
				<view class="iconfont iconlajitong" @tap="clearHistory"></view>
			</view>
			<view v-if="searchData.length > 0">
				<view 
				class="search-name f-color" 
				v-for="(item, index) in searchData"
				:key="index"
				@tap="toSearchList(item)">
				{{item}}
				</view>
			</view>
			<view v-else class="search-end">暂无搜索记录</view>
		</view>
		
		<view class="search-item">
			<view class="search-title">
				<view class="f-color">热门搜索</view>
			</view>
			<view>
				<view class="search-name f-color">四件套</view>
				<view class="search-name f-color">面膜</view>
			</view>
		</view>
		
	</view>
</template>

<script>
	import Lines from '@/components/common/Lines.vue'
	export default {
		data() {
			return {
				// 输入的关键词
				keyword: '',
				// 搜索过的词记录
				searchData: []
			}
		},
		// 页面加载的时候
		onLoad() {
			uni.getStorage({
				key:"searchData",
				success: (res) => {
					// console.log(res)
					this.searchData = JSON.parse(res.data);
				}
			})
		},
		// 监听input输入内容
		onNavigationBarSearchInputChanged(e) {
			// console.log(e)
			this.keyword = e.text
		},
		// 点击顶栏中的搜索按钮
		onNavigationBarButtonTap(e) {
			this.search()
		},
		// 监听软键盘的搜索按钮点击的
		onNavigationBarSearchInputConfirmed() {
			this.search()
		},
		components: {
			Lines
		},
		methods: {
			// 判断关键词是否为空 和 跳转页面的
			search() {
				if (this.keyword === "") {
					return uni.showToast({
						title:"关键词不能为空",
						icon: "none"
					})
				} else {
					this.toSearchList(this.keyword)
				}
				uni.hideKeyboard();
				this.addSearch();
			},
			// 记录最近搜索值
			addSearch() {
				let idx = this.searchData.indexOf(this.keyword)
				if(idx < 0) {
					this.searchData.unshift( this.keyword );
				} else {
					this.searchData.unshift( this.searchData.splice(idx, 1)[0] );
				}
				uni.setStorage({
					key:"searchData",
					data:JSON.stringify(this.searchData)
				})
			},
			clearHistory() {
				uni.showModal({
					title:"重要提示",
					content:"是否要清除搜索历史记录",
					cancelText:'取消',
					confirmText:'确定',
					success:(res)=> {
						if(res.confirm) {
							uni.removeStorage({
								key:"searchData"
							})
							this.searchData = [];
						}
					}
				})
			},
			// 点击搜索记录
			toSearchList(item) {
				uni.navigateTo({
					url:"../search-list/search-list?keyword="+item+""
				})
			}
		}
	}
</script>

<style scoped>
.search-item {
	padding:20rpx;
}
.search-title {
	display: flex;
	justify-content: space-between;
}
.search-name {
	padding: 4rpx 24rpx;
	background-color: #E1E1E1;
	display: inline-block;
	border-radius: 26rpx;
	margin: 10rpx;
}
.search-end {
	text-align: center;
}
</style>
